When the horizontal distance AB is 6 feet, the height of the loading dock, BC, is 2 feet, and BD is 12 feet. What is the height of the loading dock, DE? Round your answer to the nearest feet.
c. 6 ft
Mathematics
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Solve the problem.Given the acceleration, initial velocity, and initial position of a body moving along a coordinate line at time t, find the body's position at time t.a = 12, v(0) = -8, s(0) = -13
A. s = 12t2 - 8t - 13 B. s = 6t2 - 8t - 13 C. s = -6t2 + 8t - 13 D. s = 6t2 - 8t
Mathematics
Transform the equation to a form without an xy-term by a rotation of axes and then identify the curve.x2 + 2xy + y2 - 4x + 4y = 0
A. x'2 + 2
y' = 0; parabola
B. x'2 + 2
y' = 0; ellipse
C. x'2 - 2
y'2 = 0; hyperbola
D. x'2 - 2
y' = 0; parabola
Mathematics
Factor the expression completely. If the polynomial is prime, state this as your answer.x4 - 9
A. prime B. (x2 + 3)2 C. (x2 + 3)(x2 - 3) D. (x2 - 3)2
Mathematics
Graph the inequality.-3x - 5y ? 15
A. 
B. 
C. 
D. 
Mathematics